Updated Oct 16, 2026, 1:45 PM ET
House · 3 November 2026

NV-04 House 2026

94.4% DSteven Horsford leads TruthIndex™Safe D
Polymarket
94.4%
Kalshi
94.3%
Spread
0.4 pts
24h
–
7 days
−2.4
Updated
Oct 16, 2026, 1:45 PM ET
Latest coverage

Live News

Recent coverage for NV-04 House.

  1. Cody Whipple does things 'my way.' Can the small-town rancher flip Nevada's bluest House seat? - Mesa Valleys Progress

    Summary focused on the user’s query: David Flippo NV-02 House

    mvprogress.comWhippleBuckFlippoMaloy

Steven Horsford, last 60 days

How to read this chart

The green line is the TruthIndex™, the chance of this outcome. It combines the prices on both venues and gives more weight to the venue with more money in its order book. The two thinner lines are Polymarket's and Kalshi's own prices, and the grey band between them shows how far apart the two venues are.

The pale bands behind the lines are the rating zones (Toss-up, Lean, Likely and Safe), so you can see when the race moved from one rating to another. Move along the chart, or use the arrow keys, to read the values for each day.

More in Methodology
TruthIndex™PolymarketKalshiGap between the venuesRating zones

All outcomes

OutcomeTruthIndex™PolymarketKalshiSpread24h
DSteven Horsford 94.4% 94.4% 94.3% 0.1 pts –
RCody Whipple 5.4% 5.6% 5.2% 0.4 pts –

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Candidates & Background

Cody Whipple

Republican

Cody Whipple, a Republican telecommunications business owner, is his party's 2026 nominee for Nevada's 4th congressional district, challenging Democratic incumbent Steven Horsford, who was re-elected with 52.7% of the vote in 2024.

Steven Horsford

Steven Horsford

Democratic U.S. Representative for Nevada's 4th congressional district (since 2019)

Steven Horsford, a Democrat who has represented Nevada's 4th congressional district since 2019 and chaired the Congressional Black Caucus from 2023 to 2025, faces Republican Cody Whipple in his 2026 bid for reelection.

Born 1973 · Las Vegas, Nevada

Margin of victory

Each venue's margin market, shown on its own: the two venues set their ranges differently.

Kalshi13.0K contracts

Nevada's 4th District margin of victory

Horsford, 1+ pts
93.8%
Horsford, 4+ pts
91.0%
Horsford, 7+ pts
83.5%
Horsford, 10+ pts
74.5%
Horsford, 13+ pts
61.5%
Horsford, 16+ pts
48.5%
Horsford, 19+ pts
–
Horsford, 22+ pts
23.5%
Horsford, 25+ pts
13.5%
Source: Kalshi market

Polymarket$14.3K traded

NV-04 House Election Margin of Victory

Republican 5%+
1.1%
Republican 0-5%
0.3%
Democrat 0-5%
3.3%
Democrat 5-10%
9.5%
Democrat 10-15%
–
Democrat 15-20%
31.5%
Democrat 20-25%
4.5%
Democrat 25%+
10.5%
Source: Polymarket market

Each venue's market

Polymarket$20.1K traded

Prices which party wins.

Steven Horsford: Counted · bid 94.1% / ask 94.8% · $795 within 5 pts

This market will resolve according to the party of the candidate who wins the NV-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

Full rules on Polymarket

Kalshi12.8K contracts traded

Prices which party wins.

Steven Horsford: Counted · bid 93.1% / ask 95.5% · $1.4K within 5 pts

Contract shown: Steven Horsford

If the House member sworn in for NV-04 for the term beginning in 2027 is a member of the Democratic Party, then the market resolves to Yes.

This market is eligible for accelerated determination after a consensus of media organizations project the winner. See full rules for details.

Full rules on Kalshi